we know that sizeof never returns zero when used with structure
then why in this case it is returning zero
struct foo
{
char c;
};
void main()
{
struct foo f;
cout<<sizeof(f);
}
i am working on solaris 5.8
isn't the above function should return the size of empty structure (7 Replies)
Hello Groups
I am trying to find out ways of comparing a value from a 'c' structure to a value in another 'C' structure. the 'C' structure can be a List or liked list as it contains lot many records.
if we loop it in both the structures it is going to consume time.
I am looking for a simple... (3 Replies)
Hi,
I have a following problem in C.
I have a function A in which I used to call another function (function B) and pass an array of values through array variable by using below:-
foo=functionB(array);
In functionB, i used to just return some "values" (e.g return num;) in order to pass... (1 Reply)
The below code throws the error, since the size of x = 19 is not passed to the cstrCopy function.
using namespace std;
static void cstrCopy(char *x, const char*y);
int main ()
{
char x;
const string y = "UNIX FORUM";
cstrCopy(x,y.c_str());
return 0;
}
void cstrCopy(char *x,... (3 Replies)
Hi,
There are some bewildering sizeof() questions I have in my mind. Could anyone shed some light on this?
int main() {
printf("%d\n", sizeof(main)); // Ans: 1
}
That is, the sizeof() a function identifier though it is treated internally as a pointer gives 1 byte always, why?
... (5 Replies)
Hi,
I have defined the class and call the sizeof(object to class) to get the size.
# include <iostream>
# include <iomanip>
using namespace std;
class sample
{
private:
int i;
float j;
char k;
public:
sample()
{
} (2 Replies)
if i create an array of pointers to a structure "struct node" as:
struct node *r;
and create "n" number of "linked lists" and assign it to the various struct pointers r using some function with a return type as structure pointer as:
r=multiplty(.......) /*some parameters*/
is... (2 Replies)
Hai
how to find size of a file??
ex : /home/kiran/pdk/sample/calibre this is a path
In that I have to find size of a files in side a calibre(it is the folder) like .results or .summary (1 Reply)
Ignoring other considerations for a moment and in general ...
Would there be a difference in result (dot oh or execution) of:
A.
strncpy( a, b, sizeof(a) );
vs.
B.
c = sizeof(a);
strncpy( a, b, c );
My general understanding is (at least I think my understanding is) that... (10 Replies)
Discussion started by: GSalisbury
10 Replies
LEARN ABOUT DEBIAN
mojo::ioloop::delay
Mojo::IOLoop::Delay(3pm) User Contributed Perl Documentation Mojo::IOLoop::Delay(3pm)NAME
Mojo::IOLoop::Delay - Synchronize events
SYNOPSIS
use Mojo::IOLoop::Delay;
# Synchronize multiple events
my $delay = Mojo::IOLoop::Delay->new;
$delay->on(finish => sub { say 'BOOM!' });
for my $i (1 .. 10) {
$delay->begin;
Mojo::IOLoop->timer($i => sub {
say 10 - $i;
$delay->end;
});
}
# Wait for events if necessary
$delay->wait unless Mojo::IOLoop->is_running;
DESCRIPTION
Mojo::IOLoop::Delay synchronizes events for Mojo::IOLoop.
EVENTS
Mojo::IOLoop::Delay can emit the following events.
"finish"
$delay->on(finish => sub {
my $delay = shift;
...
});
Emitted safely once the active event counter reaches zero.
ATTRIBUTES
Mojo::IOLoop::Delay implements the following attributes.
"ioloop"
my $ioloop = $delay->ioloop;
$delay = $delay->ioloop(Mojo::IOLoop->new);
Loop object to control, defaults to the global Mojo::IOLoop singleton.
METHODS
Mojo::IOLoop::Delay inherits all methods from Mojo::EventEmitter and implements the following new ones.
"begin"
my $cb = $delay->begin;
Increment active event counter, the returned callback can be used instead of "end".
my $delay = Mojo::IOLoop->delay;
Mojo::UserAgent->new->get('mojolicio.us' => $delay->begin);
my $tx = $delay->wait;
"end"
$delay->end;
$delay->end(@args);
Decrement active event counter.
"wait"
my @args = $delay->wait;
Start "ioloop" and stop it again once the "finish" event gets emitted, only works when "ioloop" is not running already.
# Use the "finish" event to synchronize portably
$delay->on(finish => sub {
my ($delay, @args) = @_;
...
});
$delay->wait unless $delay->ioloop->is_running;
SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>.
perl v5.14.2 2012-09-05 Mojo::IOLoop::Delay(3pm)